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Question
The pH of the solution having [OH−]=10−7 is:
The pH of the solution having [OH−]=10−7 is:
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Solution
The correct option is A 7
[OH]−=10−7 M
But [H]+[OH]−=kw=10−14
Hence [H]+=kw[OH]−=10−1410−7=10−7 M.
pH=−log[H]+=−log[10−7]=7.
[OH]−=10−7 M
But [H]+[OH]−=kw=10−14
Hence [H]+=kw[OH]−=10−1410−7=10−7 M.
pH=−log[H]+=−log[10−7]=7.
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